menstruation Flashcards
hormones involved in the menstrual cycle
FSH, LH, progesterone, estrogen
where is LH secreted
pituitary glands, base of brain
where is FSH secreted
pituitary glands, base of brain
where is estrogen secreted
ovaries
where is progesterone secreted
ovaries
what does FSH do
causes a follicle to develop
what in the ovary secretes estrogen
developed follicle
what does estrogen do
causes the uterus lining to thicken
why does the uterus lining thicken?
to prepare for the zygote from potential fertilization
what does LH do
causes ovulation
when is LH produced
after follicle is fully developed
when do estrogen levels fall
after ovulation
what in the ovaries secretes progesterone
corpus lutem
what does progesterone do
keeps uterus thick and spongy
when do progesterone levels fall
beginning of menstruation
which hormone does the placenta secrete
progesterone
FSH
follicle —> egg
LH
causes ovulation
estrogen
thickens uterus lining
progesterone
keeps uterus lining thick and spongy
